Dear visitor, welcome to WesWorld. If this is your first visit here, please read the Help. It explains in detail how this page works. To use all features of this page, you should consider registering. Please use the registration form, to register here or read more information about the registration process. If you are already registered, please login here.
Quoted
SF/LF, 158-Ton Type, Irish Subchaser/Light Minesweeper laid down 1936
Displacement:
143 t light; 147 t standard; 158 t normal; 166 t full load
Dimensions: Length overall / water x beam x draught
134.51 ft / 134.51 ft x 19.36 ft x 5.58 ft (normal load)
41.00 m / 41.00 m x 5.90 m x 1.70 m
Armament:
1 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1936 Model
Anti-aircraft gun in deck mount
on centreline forward
3 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, all amidships
Weight of broadside 3 lbs / 1 kg
Shells per gun, main battery: 650
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.50" / 13 mm 0.50" / 13 mm -
2nd: 0.50" / 13 mm - -
- Conning tower: 0.50" / 13 mm
Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1,461 shp / 1,090 Kw = 19.00 kts
Range 2,500nm at 10.00 kts
Bunker at max displacement = 19 tons
Complement:
21 - 28
Cost:
£0.058 million / $0.232 million
Distribution of weights at normal displacement:
Armament: 0 tons, 0.2 %
Armour: 1 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.2 %
Machinery: 41 tons, 26.0 %
Hull, fittings & equipment: 80 tons, 51.0 %
Fuel, ammunition & stores: 15 tons, 9.5 %
Miscellaneous weights: 20 tons, 12.7 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
296 lbs / 134 Kg = 151.5 x 1.6 " / 40 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 0.5 ft / 0.2 m
Roll period: 11.0 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 1.51
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.380
Length to Beam Ratio: 6.95 : 1
'Natural speed' for length: 11.60 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 34
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 11.48 ft / 3.50 m
- Forecastle (20 %): 9.84 ft / 3.00 m
- Mid (50 %): 9.02 ft / 2.75 m
- Quarterdeck (15 %): 8.20 ft / 2.50 m
- Stern: 8.20 ft / 2.50 m
- Average freeboard: 9.17 ft / 2.80 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 100.9 %
- Above water (accommodation/working, high = better): 129.5 %
Waterplane Area: 1,588 Square feet or 147 Square metres
Displacement factor (Displacement / loading): 149 %
Structure weight / hull surface area: 24 lbs/sq ft or 119 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.79
- Longitudinal: 8.30
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
-20t for depth charges (LF-class)
-20t for minesweeping gear (SF-class)
This post has been edited 1 times, last edit by "Brockpaine" (Jun 22nd 2008, 8:07pm)
Quoted
Originally posted by Brockpaine
No comments?![]()
![]()
![]()
Quoted
SF/LF-164t, Irish Subchaser/Light Minesweeper laid down 1936
Displacement:
149 t light; 153 t standard; 164 t normal; 173 t full load
Dimensions: Length overall / water x beam x draught
134.51 ft / 134.51 ft x 19.36 ft x 5.58 ft (normal load)
41.00 m / 41.00 m x 5.90 m x 1.70 m
Armament:
1 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1936 Model
Anti-aircraft gun in deck mount
on centreline forward
3 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, all amidships
Weight of broadside 3 lbs / 1 kg
Shells per gun, main battery: 650
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.50" / 13 mm 0.50" / 13 mm -
2nd: 0.50" / 13 mm - -
- Conning tower: 0.50" / 13 mm
Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1,514 shp / 1,129 Kw = 19.00 kts
Range 2,500nm at 10.00 kts
Bunker at max displacement = 19 tons
Complement:
22 - 29
Cost:
£0.060 million / $0.241 million
Distribution of weights at normal displacement:
Armament: 0 tons, 0.2 %
Armour: 1 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.2 %
Machinery: 42 tons, 25.9 %
Hull, fittings & equipment: 85 tons, 51.7 %
Fuel, ammunition & stores: 15 tons, 9.4 %
Miscellaneous weights: 20 tons, 12.2 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
310 lbs / 141 Kg = 158.7 x 1.6 " / 40 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 0.5 ft / 0.2 m
Roll period: 11.3 seconds
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 1.63
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.395
Length to Beam Ratio: 6.95 : 1
'Natural speed' for length: 11.60 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 34
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 13.12 ft / 4.00 m
- Forecastle (20 %): 11.48 ft / 3.50 m
- Mid (50 %): 9.02 ft / 2.75 m
- Quarterdeck (15 %): 8.20 ft / 2.50 m
- Stern: 8.20 ft / 2.50 m
- Average freeboard: 9.75 ft / 2.97 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 100.1 %
- Above water (accommodation/working, high = better): 129.7 %
Waterplane Area: 1,598 Square feet or 148 Square metres
Displacement factor (Displacement / loading): 151 %
Structure weight / hull surface area: 24 lbs/sq ft or 118 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.77
- Longitudinal: 10.01
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
-20t for depth charges (LF-class)
-20t for minesweeping gear (SF-class)
Quoted
Originally posted by ShinRa_Inc
I'd be careful on that assumption...a few of my designs got past with 'no comment', only to be picked apart after I'd already built 4 or 8 of 'em...
Forum Software: Burning Board® Lite 2.1.2 pl 1, developed by WoltLab® GmbH